Having passed their provisional license exam, the girls are called in to support a surgeon with their song. But before they accept the job, they have some training to do...
and shorten the length of surgeries 
and patient convalescence time.
وتقليص مدّة العمليّات الجراحيّة
وفترة نقاهة المرضى
Dadurch würden
Operationen schneller gehen
e di accorciare la durata
di interventi chirurgici e convalescenza.
e encurtar as cirurgias e o tempo
de recuperação do paciente.
сокращение времени проведения
операции и восстановления пациента.